Which of the following is true about comparative negligence and contributory negligence?
a. They are two names for the same defense.
b. To avoid liability for an unintentional tort, the defendant must prove the presence of both defenses.
c. Comparative negligence is used with intentional torts and contributory negligence is used with unintentional torts.
d. Comparative negligence allows the plaintiff to make a partial recovery whereas contributory negligence does not.